EP4130452A4 - Labyrinthdichtung und gasturbine - Google Patents

Labyrinthdichtung und gasturbine Download PDF

Info

Publication number
EP4130452A4
EP4130452A4 EP21779035.1A EP21779035A EP4130452A4 EP 4130452 A4 EP4130452 A4 EP 4130452A4 EP 21779035 A EP21779035 A EP 21779035A EP 4130452 A4 EP4130452 A4 EP 4130452A4
Authority
EP
European Patent Office
Prior art keywords
gas turbine
labyrinth seal
labyrinth
seal
turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21779035.1A
Other languages
English (en)
French (fr)
Other versions
EP4130452B1 (de
EP4130452A1 (de
Inventor
Takahiro Ando
Shoichi SHIMOMURA
Naoya TANABASHI
Shinya Makino
Masahiro Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Publication of EP4130452A1 publication Critical patent/EP4130452A1/de
Publication of EP4130452A4 publication Critical patent/EP4130452A4/de
Application granted granted Critical
Publication of EP4130452B1 publication Critical patent/EP4130452B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/28—Arrangement of seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/231—Three-dimensional prismatic cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/232—Three-dimensional prismatic conical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/711—Shape curved convex

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP21779035.1A 2020-03-31 2021-03-10 Labyrinthdichtung und gasturbine Active EP4130452B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020064025A JP7445495B2 (ja) 2020-03-31 2020-03-31 ラビリンスシール及びガスタービン
PCT/JP2021/009569 WO2021199993A1 (ja) 2020-03-31 2021-03-10 ラビリンスシール及びガスタービン

Publications (3)

Publication Number Publication Date
EP4130452A1 EP4130452A1 (de) 2023-02-08
EP4130452A4 true EP4130452A4 (de) 2024-05-01
EP4130452B1 EP4130452B1 (de) 2026-04-15

Family

ID=77928672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21779035.1A Active EP4130452B1 (de) 2020-03-31 2021-03-10 Labyrinthdichtung und gasturbine

Country Status (4)

Country Link
US (1) US12044131B2 (de)
EP (1) EP4130452B1 (de)
JP (1) JP7445495B2 (de)
WO (1) WO2021199993A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7519201B2 (ja) * 2020-03-31 2024-07-19 川崎重工業株式会社 ラビリンスシール及びガスタービン

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8002286B1 (en) * 2010-06-14 2011-08-23 Florida Turbine Technologies, Inc. Aerodynamically mistuned labyrinth seal
US20180187567A1 (en) * 2015-07-03 2018-07-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
US20190136863A1 (en) * 2016-05-31 2019-05-09 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
US20190186637A1 (en) * 2016-06-22 2019-06-20 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
CN110325710A (zh) * 2017-02-28 2019-10-11 三菱日立电力系统株式会社 动叶、转子单元及旋转机械

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8517666B2 (en) * 2005-09-12 2013-08-27 United Technologies Corporation Turbine cooling air sealing
US7971882B1 (en) * 2007-01-17 2011-07-05 Florida Turbine Technologies, Inc. Labyrinth seal
JP6975672B2 (ja) 2017-09-07 2021-12-01 株式会社神戸製鋼所 ラビリンスシール構造
US20190072185A1 (en) * 2017-09-07 2019-03-07 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal and labyrinth seal structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8002286B1 (en) * 2010-06-14 2011-08-23 Florida Turbine Technologies, Inc. Aerodynamically mistuned labyrinth seal
US20180187567A1 (en) * 2015-07-03 2018-07-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
US20190136863A1 (en) * 2016-05-31 2019-05-09 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
US20190186637A1 (en) * 2016-06-22 2019-06-20 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Labyrinth seal
CN110325710A (zh) * 2017-02-28 2019-10-11 三菱日立电力系统株式会社 动叶、转子单元及旋转机械

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021199993A1 *

Also Published As

Publication number Publication date
JP2021162085A (ja) 2021-10-11
WO2021199993A1 (ja) 2021-10-07
EP4130452B1 (de) 2026-04-15
EP4130452A1 (de) 2023-02-08
US12044131B2 (en) 2024-07-23
US20230145667A1 (en) 2023-05-11
JP7445495B2 (ja) 2024-03-07

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